Its analgesic effects are only partially reversed by naloxone, hence indicating that its opioid action is unlikely the sole factor; tramadol's analgesic effects are also partially reversed by Î±2 adrenergic receptor antagonists like yohimbine and the 5-HT3 receptor antagonist, ondansetron.
Array formulas in versions before Excel 2007 cannot handle whole-column references. In Excel 2007, array formulas can handle whole-column references, but this forces calculation for all the cells in the column, including empty cells. This can be slow to calculate, especially for 1 million rows.
Answer: In cell C1, you can use the following Excel formula with 3 nested IF functions: =IF(B1=0,A1/2, IF(B1=1,(A1/2)*0.2, IF(D1=1,(A1/2)-5,))) Please note that if none of the conditions are met, the Excel formula will return  as the result.